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Finding the Fourth Proportional to 713,119.50, 983,928.74 and 422,799.17

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Solution

The fourth proportional to 713,119.50, 983,928.74 and 422,799.17 is: 583,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,119.50 : 983,928.74 = 422,799.17 : x
  2. Step 2: Convert to fraction form
    713,119.50/983,928.74 = 422,799.17/x
  3. Step 3: Cross multiply
    713,119.50x = 983,928.74 × 422,799.17
  4. Step 4: Simplify right side
    713,119.50x = 416,004,247,577.51
  5. Step 5: Solve for x
    x = 416,004,247,577.51/713,119.50
  6. Step 6: Final answer
    x = 583,358.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.